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DS620 Datasheet(PDF) 1 Page - Dallas Semiconductor |
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DS620 Datasheet(HTML) 1 Page - Dallas Semiconductor |
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1 / 15 page  1 of 15 081004 Note: Some revisions of this device may incorporate deviations from published specifications known as errata. Multiple revisions of any device may be simultaneously available through various sales channels. For information about device errata, click here: www.maxim-ic.com/errata. GENERAL DESCRIPTION The DS620 digital thermometer and thermostat provides low-voltage (1.7V £ VDD £ 3.5V) temperature measurements with ±0.5°C accuracy from 0°C to +70°C and an operating temperature range of -55°C to +125°C. The DS620 communicates over a 2-wire digital interface. For distributed-sensing applications, it is multidroppable with three address pins that allow up to eight DS620s to operate on a single bus. The DS620 has thermostat functionality with user- defined thresholds stored in EEPROM registers, and it can be configured for standalone thermostat operation. The programmable output (PO) pin serves as the thermostat output, and this pin can also be configured to function as an active-low control for peripheral devices. APPLICATIONS Portable Applications Low-Voltage Temperature-Sensitive Applications Computers/Servers Test Equipment Medical Instruments Industrial Applications TYPICAL OPERATING CIRCUIT FEATURES § Low-Voltage Operation: 1.7V to 3.5V § ±0.5°C Accuracy from 0°C to +70°C § Operating Temperature Range: -55°C to +125°C (-67°F to +257°F) § Temperature Measurements Require No External Components § Resolution is User-Selectable to 10-, 11-, 12-, or 13-Bits (0.5°C, 0.25°C, 0.125°C, and 0.0625°C LSb Weight, Respectively) § Multidroppable § Fast (200ms max) Temperature-to-Digital Conversion Time § Thermostatic Settings are User-Definable and Nonvolatile § Standalone Thermostat Capability § Data is Read/Written Through a 2-Wire Serial Interface § Package: 8-Pin mSOP ORDERING INFORMATION PART TEMP RANGE PIN-PACKAGE DS620U -55°C to +125°C 8 µSOP, Exposed Pad DS620U/T&R -55°C to +125°C 8 µSOP Exposed Pad Tape-and-Reel PIN CONFIGURATION 1 2 3 45 6 7 8 SDA SCL PO GND A2 VDD 8-Pin mSOP Package DS620 A1 A0 DS620 Low-Voltage, ±0.5°C Accuracy Digital Thermometer and Thermostat www.maxim-ic.com Exposed Pad VDD PO SDA SCL A0 A1 A2 GND 1.7V to 3.5V HOST SDA SCL 1.7V to 3.5V Thermostat DS620 |
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